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Date: Wed, 25 Aug 2021 15:16:00 -0700
From: Bjorn Andersson <bjorn.andersson@...aro.org>
To: Andy Gross <agross@...nel.org>,
Bjorn Andersson <bjorn.andersson@...aro.org>,
Rob Herring <robh+dt@...nel.org>
Cc: linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org, Robert Foss <robert.foss@...aro.org>
Subject: [PATCH] arm64: dts: qcom: sm8350: Add CPU topology and idle-states
Add CPU topology and define the idle states for the silver and gold
cores as well as the cluster.
Signed-off-by: Bjorn Andersson <bjorn.andersson@...aro.org>
---
arch/arm64/boot/dts/qcom/sm8350.dtsi | 141 +++++++++++++++++++++++++++
1 file changed, 141 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/sm8350.dtsi b/arch/arm64/boot/dts/qcom/sm8350.dtsi
index c6e1febaee46..35e8935bc1fa 100644
--- a/arch/arm64/boot/dts/qcom/sm8350.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm8350.dtsi
@@ -48,6 +48,8 @@ CPU0: cpu@0 {
enable-method = "psci";
next-level-cache = <&L2_0>;
qcom,freq-domain = <&cpufreq_hw 0>;
+ power-domains = <&CPU_PD0>;
+ power-domain-names = "psci";
#cooling-cells = <2>;
L2_0: l2-cache {
compatible = "cache";
@@ -65,6 +67,8 @@ CPU1: cpu@100 {
enable-method = "psci";
next-level-cache = <&L2_100>;
qcom,freq-domain = <&cpufreq_hw 0>;
+ power-domains = <&CPU_PD1>;
+ power-domain-names = "psci";
#cooling-cells = <2>;
L2_100: l2-cache {
compatible = "cache";
@@ -79,6 +83,8 @@ CPU2: cpu@200 {
enable-method = "psci";
next-level-cache = <&L2_200>;
qcom,freq-domain = <&cpufreq_hw 0>;
+ power-domains = <&CPU_PD2>;
+ power-domain-names = "psci";
#cooling-cells = <2>;
L2_200: l2-cache {
compatible = "cache";
@@ -93,6 +99,8 @@ CPU3: cpu@300 {
enable-method = "psci";
next-level-cache = <&L2_300>;
qcom,freq-domain = <&cpufreq_hw 0>;
+ power-domains = <&CPU_PD3>;
+ power-domain-names = "psci";
#cooling-cells = <2>;
L2_300: l2-cache {
compatible = "cache";
@@ -107,6 +115,8 @@ CPU4: cpu@400 {
enable-method = "psci";
next-level-cache = <&L2_400>;
qcom,freq-domain = <&cpufreq_hw 1>;
+ power-domains = <&CPU_PD4>;
+ power-domain-names = "psci";
#cooling-cells = <2>;
L2_400: l2-cache {
compatible = "cache";
@@ -121,6 +131,8 @@ CPU5: cpu@500 {
enable-method = "psci";
next-level-cache = <&L2_500>;
qcom,freq-domain = <&cpufreq_hw 1>;
+ power-domains = <&CPU_PD5>;
+ power-domain-names = "psci";
#cooling-cells = <2>;
L2_500: l2-cache {
compatible = "cache";
@@ -136,6 +148,8 @@ CPU6: cpu@600 {
enable-method = "psci";
next-level-cache = <&L2_600>;
qcom,freq-domain = <&cpufreq_hw 1>;
+ power-domains = <&CPU_PD6>;
+ power-domain-names = "psci";
#cooling-cells = <2>;
L2_600: l2-cache {
compatible = "cache";
@@ -150,12 +164,86 @@ CPU7: cpu@700 {
enable-method = "psci";
next-level-cache = <&L2_700>;
qcom,freq-domain = <&cpufreq_hw 2>;
+ power-domains = <&CPU_PD7>;
+ power-domain-names = "psci";
#cooling-cells = <2>;
L2_700: l2-cache {
compatible = "cache";
next-level-cache = <&L3_0>;
};
};
+
+ cpu-map {
+ cluster0 {
+ core0 {
+ cpu = <&CPU0>;
+ };
+
+ core1 {
+ cpu = <&CPU1>;
+ };
+
+ core2 {
+ cpu = <&CPU2>;
+ };
+
+ core3 {
+ cpu = <&CPU3>;
+ };
+
+ core4 {
+ cpu = <&CPU4>;
+ };
+
+ core5 {
+ cpu = <&CPU5>;
+ };
+
+ core6 {
+ cpu = <&CPU6>;
+ };
+
+ core7 {
+ cpu = <&CPU7>;
+ };
+ };
+ };
+
+ idle-states {
+ entry-method = "psci";
+
+ LITTLE_CPU_SLEEP_0: cpu-sleep-0-0 {
+ compatible = "arm,idle-state";
+ idle-state-name = "silver-rail-power-collapse";
+ arm,psci-suspend-param = <0x40000004>;
+ entry-latency-us = <355>;
+ exit-latency-us = <909>;
+ min-residency-us = <3934>;
+ local-timer-stop;
+ };
+
+ BIG_CPU_SLEEP_0: cpu-sleep-1-0 {
+ compatible = "arm,idle-state";
+ idle-state-name = "gold-rail-power-collapse";
+ arm,psci-suspend-param = <0x40000004>;
+ entry-latency-us = <241>;
+ exit-latency-us = <1461>;
+ min-residency-us = <4488>;
+ local-timer-stop;
+ };
+ };
+
+ domain-idle-states {
+ CLUSTER_SLEEP_0: cluster-sleep-0 {
+ compatible = "domain-idle-state";
+ idle-state-name = "cluster-power-collapse";
+ arm,psci-suspend-param = <0x4100c344>;
+ entry-latency-us = <3263>;
+ exit-latency-us = <6562>;
+ min-residency-us = <9987>;
+ local-timer-stop;
+ };
+ };
};
firmware {
@@ -179,6 +267,59 @@ pmu {
psci {
compatible = "arm,psci-1.0";
method = "smc";
+
+ CPU_PD0: cpu0 {
+ #power-domain-cells = <0>;
+ power-domains = <&CLUSTER_PD>;
+ domain-idle-states = <&LITTLE_CPU_SLEEP_0>;
+ };
+
+ CPU_PD1: cpu1 {
+ #power-domain-cells = <0>;
+ power-domains = <&CLUSTER_PD>;
+ domain-idle-states = <&LITTLE_CPU_SLEEP_0>;
+ };
+
+ CPU_PD2: cpu2 {
+ #power-domain-cells = <0>;
+ power-domains = <&CLUSTER_PD>;
+ domain-idle-states = <&LITTLE_CPU_SLEEP_0>;
+ };
+
+ CPU_PD3: cpu3 {
+ #power-domain-cells = <0>;
+ power-domains = <&CLUSTER_PD>;
+ domain-idle-states = <&LITTLE_CPU_SLEEP_0>;
+ };
+
+ CPU_PD4: cpu4 {
+ #power-domain-cells = <0>;
+ power-domains = <&CLUSTER_PD>;
+ domain-idle-states = <&BIG_CPU_SLEEP_0>;
+ };
+
+ CPU_PD5: cpu5 {
+ #power-domain-cells = <0>;
+ power-domains = <&CLUSTER_PD>;
+ domain-idle-states = <&BIG_CPU_SLEEP_0>;
+ };
+
+ CPU_PD6: cpu6 {
+ #power-domain-cells = <0>;
+ power-domains = <&CLUSTER_PD>;
+ domain-idle-states = <&BIG_CPU_SLEEP_0>;
+ };
+
+ CPU_PD7: cpu7 {
+ #power-domain-cells = <0>;
+ power-domains = <&CLUSTER_PD>;
+ domain-idle-states = <&BIG_CPU_SLEEP_0>;
+ };
+
+ CLUSTER_PD: cpu-cluster0 {
+ #power-domain-cells = <0>;
+ domain-idle-states = <&CLUSTER_SLEEP_0>;
+ };
};
reserved_memory: reserved-memory {
--
2.29.2
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